TM 9-2320-364-102-104 Table 2-3. Operators Preventive Maintenance Checksand Services (After) - CONT.LocationItemNo.IntervalItem toCheck/ServiceProcedureNot Fully MissionCapable if:∑ Never allow engine oil level to drop below the LOW mark. Damage to engine may result.∑ High engine oil level could indicate fuel or water leakage intocrankcase and could cause serious damage to equipment. NotifyUnit Maintenance if high oil level is detected.NOTE∑ Ensure vehicle is positioned on level ground.∑ The ladder is needed for the following procedure.∑ Dipstick must be inserted all the way into tube.∑ Allow at 20 minues to elapse after shutdown before checking oilto allow engine oil to drain to crank case.62AfterEngine OilLevelCheck that engine oil level isbetween Low (L) and Full (F) onthe dipstick (1). If below Low (L)fill as required. Close accesspanel (2).Oil level is not between Low (L)and Full (F) on dipstick orClass III leak is evident.